Possible write a JavaScript for Greasemonkey/Tampermonkey.
I couldn't figure it out on my mobile. I'll see if I can get Tampermonkey to work.I use this in my post report extension but you can do it as Xal0lex mentioned with some other tools that inject scripts. You can probably just run it in the dev console (Ctrl-Shift-I) manually. Not sure about mobile browsers though.
That's what stopped me indeed, I can't press F12 on mobile.Quote
Code:
try {
document.getElementById("smfheader").style.visibility = "hidden";
document.getElementById("hellomember").style.visibility = "hidden";
document.getElementsByClassName("avatar")[0].style.visibility = "hidden";
} catch { }
document.getElementById("smfheader").style.visibility = "hidden";
document.getElementById("hellomember").style.visibility = "hidden";
document.getElementsByClassName("avatar")[0].style.visibility = "hidden";
} catch { }
Looks like this:
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If this is a family occasion then it sounds a lot like me 
.
Chasing the kids .